72381380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{751}}^1$

素因数の和:900

約数の個数: 48

約数和(自身を含む): 156656640

約数和(自身を除く): 84275260

約数列:

[1, 2, 4, 5, 10, 20, 61, 79, 122, 158, 244, 305, 316, 395, 610, 751, 790, 1220, 1502, 1580, 3004, 3755, 4819, 7510, 9638, 15020, 19276, 24095, 45811, 48190, 59329, 91622, 96380, 118658, 183244, 229055, 237316, 296645, 458110, 593290, 916220, 1186580, 3619069, 7238138, 14476276, 18095345, 36190690, 72381380]

約数ペア:

[(1, 72381380), (2, 36190690), (4, 18095345), (5, 14476276), (10, 7238138), (20, 3619069), (61, 1186580), (79, 916220), (122, 593290), (158, 458110), (244, 296645), (305, 237316), (316, 229055), (395, 183244), (610, 118658), (751, 96380), (790, 91622), (1220, 59329), (1502, 48190), (1580, 45811), (3004, 24095), (3755, 19276), (4819, 15020), (7510, 9638)]